Introduction Extraction is a purification technique used in organic chemistry to separate compounds from a mixture of two or more compounds. There are three different extraction techniques: liquid-liquid extraction‚ solid-liquid extraction and chemically active extraction. All three types of extraction follow the same principle. Organic molecules dissolve in organic solvents and polar molecules dissolve in aqueous solvents. This phenomenon is observed because of the intermolecular forces between
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Berry DNA Extraction Lab I. Problem Statement: Successfully extracting the DNA from strawberries. II. Background info: DNA is the genetic information in organisms that codes for proteins‚ and controls the cells function. The DNA is a double helix molecule that is formed by various nucleotides which include Adenine‚ Thymine‚ Guanine‚ and Cytosine with sugar phosphate. Different organisms can have larger or smaller genes. DNA is also what makes up chromosomes during cell replication. Strawberries
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accomplish several goals that might be related or not to the pharmacy profession. This time‚ as part of my IPPE shadowing course I have been able to develop extra goals more oriented towards the practice area of the pharmacy profession. One of these goals for the semester is to be able to understand and learn more in detail what is a pharmacist role in the hospital setting‚ since I have had the opportunity to shadow in a community pharmacy previously‚ and I believe I am more familiar with the pharmacist
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the basic methods of procedure that can be used for later experiments. This experiment involves the separation of benzoic acid from a more crude form‚ consisting of benzoic acid‚ methyl orange‚ a common acid/base indicator‚ and cellulose‚ a natural polymer of glucose (Huston‚ and Liu 17-24). The technique that is used to perform this separation is called extraction. Extraction is a systematic process of separating mixtures of compounds‚ taking advantage of the affinity differences of compounds to separate
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p-dichlorobenzene from its mixture using acid-alkaline extraction. 2. To determine the percentage recovery and melting point of benzoic acid and p-diclorobenzene. Apparatus:Separatory funnel(250mL)‚Buchner funnel‚beaker. Materials:Benzoic acid‚p-dichlorobenzene‚ether‚10% NaOH‚conc.HCl‚distilled water‚ anhydrous CaCl2. Introduction: Organic compounds in an aqueous mixture can be separated by shaking the aqueous solution with a solvent which is immiscible with water. Extraction involves dissolving
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Extracting DNA from Wheat Germ Cells Criteria to be assessed CE Introduction: DNA is the abbreviation for deoxyribonucleic acid. DNA is found in the nucleus of every cell & it stores the information that makes up living organisms. It is a double helix of 4 nucleotides. It contains a code that allows the body to make up proteins. The nucleotides are Cytosine‚ Guanine‚ Adenine and Thymine. (1) Wheat germ comes from wheat seeds. The ’ germ ’ is the embryo‚ which is the part of
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Formal letter is a business or official letter. They are written to complaint or inform something. These letters include applications‚ letters to editors‚ official letters‚ letters to and from organizations‚ government departments etc. These letters have an objective or business-like style of writing. Points To Remember: 1. Mentioning the subject is a must in a formal letter. 2. The formal letter should be brief‚ simple and concise. 3. It should focus on the issue rather than dwindling on various
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use various paper materials and pens to process the sales and inventory. In this new era‚ there are establishments using automated transaction such as sales and inventory systems while other still depend on the manual procedures like Maureen Edisel Pharmacy. It is owned by Ms. Maureen Edisel C. Igmen‚ it was established on April 28‚ 2007. And it is located at Avenida Veteranos St. Tacloban City. The researchers observed that the current aforementioned system allocates a lot of time and effort in generating
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The purpose of the DNA extraction lab was not only to inform students on how DNA is present in humans and all organisms‚ but to also educate them on how DNA can be extracted using common household materials. Also‚ the lab was very efficient as it introduced the students to extracting their own DNA found on their cheek cells as well as letting them take an observation on how DNA appears or how it is formed. Additionally‚ students were instructed through a very clear and simple procedure‚ which guided
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THE EXTRACTION OF DNA THE EXTRACTION OF DNA 07/02/2013 | By Laura Green‚ Tasnim Rahman and Sandra Strammiello | Table of Contents DNA………………………………………………………………………………………..………… 2 The Discovery of DNA…………………………………………………………………………...…………..…………. 4 The Steps for Extracting DNA…………………………………………………………………………………………….…..… 5 Experiment: Which Product Can the Most Visible Amount of DNA Be Extracted From?..............................................................................................
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